RT Journal Article SR Electronic A1 Minarik, Jiri A1 Pour, Ludek A1 Maisnar, Vladimir A1 Spicka, Ivan A1 Jungova, Alexandra A1 Jelinek, Tomas A1 Brozova, Lucie A1 Krhovska, Petra A1 Scudla, Vlastimil A1 Hajek, Roman T1 Single agent daratumumab in advanced multiple myeloma possesses significant efficacy even in an unselected "real-world" population JF Biomedical papers YR 2019 VO 163 IS 3 SP 279 OP 283 UL https://biomed.papers.upol.cz/artkey/bio-201903-0015.php AB Objective: The treatment of relapsed and refractory multiple myeloma (RRMM) remains challenging. The outcomes in highly pretreated populations are unsatisfactory and there is urgent need for novel and safe therapeutic approaches. Recently, daratumumab has been approved for RRMM with promising results even in monotherapy. The aim of this study was to assess the efficacy of single agent daratumumab outside a clinical trial. Patients and Methods: 14 patients with RRMM and significant pretreatment (median 4.5 previous lines) entered a specific healthcare program and received treatment with single agent daratumumab. They were followed for therapeutic response based on IMWG criteria, and incidence of adverse events. The data were collected using the Registry of Monoclonal Gammopathies. Results: The overall response rate was 38.5%. 23.1% of patients reached very good partial response, 15.4% reached partial remission, 15.4% had minimal response, 38.5% had stable disease and 7.7% had progressive disease. The median progression free survival was 4.6 months and median overall survival was not achieved. The toxicities were mostly mild, only infectious complications and hematological toxicity reached grade III. Conclusion: We conclude that daratumumab has significant activity in highly pretreated RRMM even as a single agent, with an acceptable toxicity profile and survival impact.